Method for determining a representative parameter of a porous sample and related assembly

A system of determination of a representative parameter of a porous sample, comprising:

• a cell configured to receive a porous sample containing a first fluid;
• an apparatus configured to establish a steady state profile of a second fluid content in the porous sample by applying a mechanical load, to create a plurality of regions having different second fluid contents in the porous sample;
• a first measuring apparatus configured to measure, in each of the plurality of regions, a local saturation in the first fluid or/and in the second fluid;
• a second measuring apparatus configured to measure, in each of the plurality of regions, a corresponding local electrical resistivity and/or a corresponding local electrical conductivity;
• and
• a calculator configured to determine a value of the representative parameter based on the corresponding values of local saturation and of the local electrical conductivity and/or the local electrical resistivity in each of the plurality of regions.

A method of determining a representative parameter of a porous sample, comprising:

• providing a porous sample, the porous sample containing a first fluid;
• applying a first mechanical load to establish a steady state profile of a second fluid content in the porous sample, and to create a plurality of regions having different second fluid contents in the porous sample;
• measuring, in each of the plurality of regions, a local saturation in the first fluid or/and in the second fluid;
• measuring, in each of the plurality of regions, a corresponding local electrical resistivity and/or a corresponding local electrical conductivity, comprising placing electrodes locally at the boundaries of the region;
• and
• determining a value of the representative parameter based on the corresponding values of the local saturation and of the local electrical conductivity and/or the local electrical resistivity in each of the plurality of regions.